When you come across moderate- or high-quality evidence on mentoring that we missed in preparing the book, please add it to this forum. For example, we've worked mostly in academic centers in high-income countries, and we'd welcome contributions from colleagues who are mentoring in other settings such as those in low-income countries.

When you have had a particularly positive or negative experience in mentoring or being mentored, please add it to the forum, telling the rest of us what you think its "active" principle was so that we can duplicate or discard it accordingly.

When you find important gaps that we simply failed to cover, let us know.

And we always appreciate having this book's errors (including typos, misspellings, and other goofs) identified and corrected.